The typical asking rate per listing is in the $20's per square foot per year. The Bay Park region is going through a a rise in rates. In the last 3 months, the median rate went up $29 per sqft per year.
Compared to the rest of the San Diego market, the Bay Park region has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 1 listings have been posted online, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 200% of the listings in the Bay Park are subleases, so you might be able to sign a shorter term by taking over a previous lease. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,230 sqft. Most buildings in this area are close to 2 floors. Most buildings in this area were built in 2008 and are Class C.
Not much of the real estate is used for commercial space, so it might be hard to find office space. Health care is the dominant industry in this market. Commute by walking is the most popular way to get to work amongst Bay Park folk. Commuting under 5 minutes a day is the norm for those who opt to reside in this part of town.